I have multiple checkbox and their field name but i dont know where i have done wrong the name of the field changes i am unable to find out where is the problem.
Here m
For me it looks like encoding problem. Make sure that you use same view in both cases, and in both cases you have same encoding (I assume UTF-8):
UTF-8
<meta charset="utf-8">
in <head> section of your HTML.
<head>
Also make sure the file is saved in same encoding as you declared above.